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NOTES.md

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Notes

TODO

testing

next

features

  • finish saltstack init.sls: switch efi_src to /efi if there also is boot, set efi_sync=true if /efi2 partition exists
  • make connect.sh ssh client not connect to ecsda server (deprecated)
  • storage-unmount.sh implement [--ignore-fail]
  • copy and parse locale.yaml in bootstrap-2-*
  • extend: connect.sh --unsafe for extra safety for encryption key
    • checks after connecting if gatewaydev is different, or cpuid is different, aborts if emulated
    • use --unsafe if you know you're connecting to a vm
  • recovery scripts to replace a faulty disk and to invalidate a disk
    • write script to replace a changed faulty disk: recovery-replace-mirror.sh
    • write cript to deactivate (invalidate) one of two disks: storage-invalidate-mirror.sh
  • optional use of tmux for long running ssh connections of bootstrap.sh
  • gitops: make target system also honor http_proxy on gitops install
  • make desaster recovery from backup storage (bootstrap-1-restore and bootstrap-2-restore)
  • clevis integration
  • make distrib_id=Nixos distrib_codename=19.09 working
    • make ./machine-bootstrap-configuration.nix in bootstrap-library
    • make minimal configuration.nix on project create

known issues

  • ubuntu: non-blocking: phase install: reboot
    • rpool busy (can not export rpool)
    • lvm-root busy (Logical volume vg0/lvm-root contains a filesystem in use)

tested combinations

virtual, 2 x 10g disks

  • distrib_codename=bionic, recovery_autologin=true, storage_opts="--boot-fs=ext4 --root-fs=ext4 --root-lvm=vg0 --root-lvm-vol-size=4096 --root-crypt=true --swap=1024 --reuse"
  • http_proxy set, distrib_codename=focal, recovery_autologin=true, storage_opts="--boot=false --root-size=6000 --root-fs=ext4 --root-lvm=vg0 --root-lvm-vol-size=4096 --root-crypt=true --log=128 --cache=384 --swap=512"

virtual, 2 x 15g disks

  • http_proxy="http://192.168.122.1:8123", distrib_id=Ubuntu, distrib_codename=focal, recovery_autologin=true, gitops_target="/home/wuxxin", gitops_user="wuxxin", storage_opts="--boot=false --efi-size=2048 --log=128 --cache=128 --root-fs=zfs --root-size=10240 --data-lvm=vgdata --data-fs=ext4 --data-lvm-vol-size=2048 --reuse"

snippets

  • find and count lines,words
find . -name ".git" -prune -o -type f -print0 | wc --files0-from=- | sort -n
  • media mount
/lib/systemd/system/media-filesystem.mount


[Mount]
What=/cdrom/casper/filesystem.squashfs
Where=/media/filesystem
Type=squashfs
Options=ro
/lib/systemd/system/local-fs.target.wants/@media-filesystem.mount
  • testing apt.conf for usage with -c=apt.conf
Debug
{
  pkgProblemResolver "true";
  pkgProblemResolver::ShowScores "true";
  pkgDepCache::AutoInstall "true"; // what packages apt installs to satisfy dependencies
  pkgDPkgPM "true";
  pkgOrderList "true";
  pkgPackageManager "true"; // OrderList/Configure debugging
  pkgAutoRemove "true";   // show information about automatic removes
  BuildDeps "true";
  pkgPolicy "true";
  EDSP::WriteSolution "true";
  InstallProgress::Fancy "true";
};
pkgProblemResolver::FixByInstall "true";

  • ask for passwords on initramfs shell

    • interactive: systemd-tty-ask-password-agent
    • unattended: for s in /var/run/systemd/ask-password/sck.*; do echo -n "password" | /lib/systemd/systemd-reply-password 1 $s; done

  • mount a inactive vm qcow image

sudo guestmount -a /var/lib/libvirt/images/xenserver.qcow2 -m /dev/sda1 /mnt/test
  • grub gfx mode
set gfxmode=auto
insmod gfxterm
terminal_output gfxterm
  • debug dracut on shutdown, add to already booted system
mkdir -p /run/initramfs/etc/cmdline.d
echo "rd.debug rd.break=pre-shutdown rd.break=shutdown" > /run/initramfs/etc/cmdline.d/debug.conf
  • compile custom zfs-linux if requested
if $option_frankenstein; then
    if test ! -e /tmp/zfs/build-custom-zfs.sh; then
        echo "error: could not find needed files for frankenstein zfs-linux build, continue without custom build"
    else
        echo "build-custom-zfs"
        chmod +x /tmp/zfs/build-custom-zfs.sh
        /tmp/zfs/build-custom-zfs.sh /tmp/zfs/basedir --source focal --dest $distrib_codename
        if test -e $custom_archive; then rm -rf $custom_archive; fi
        mkdir -p $custom_archive
        mv -t $custom_archive /tmp/zfs/basedir/build/buildresult/*
        rm -rf /tmp/zfs/basedir
        cat > $custom_sources_list << EOF
deb [ trusted=yes ] file:$custom_archive ./
EOF
        # needs additional apt-get update, done below
    fi
fi

if $option_frankenstein; then
    echo "copy custom archive files"
    if test -e "/mnt$custom_archive"; then
        if $option_restore_backup; then
            echo "WARNING: --restore-from-backup: not deleting existing target dir $custom_archive"
        else
            echo "WARNING: removing existing $custom_archive"
            rm -rf "/mnt$custom_archive"
        fi
    fi
    echo "insert distrib_codename($distrib_codename) into /etc/pbuilderrc"
    echo "DISTRIBUTION=$distrib_codename" >> /mnt/etc/pbuilderrc
    mkdir -p "/mnt$custom_archive"
    cp -t "/mnt$custom_archive" $custom_archive/*
    cat > "/mnt$custom_sources_list" << EOF
deb [ trusted=yes ] file:$custom_archive ./
EOF
    # remove archive from ramdisk, it is already installed in running system and copied to target
    rm -r $custom_archive
    rm $custom_sources_list
fi